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Admin_update_item.java
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import java.io.*;
import java.sql.*;
import javax.servlet.*;//For getting the generic servlet class
import javax.servlet.http.*;//For getting the HttpServlet class
public class Admin_update_item extends HttpServlet
{
public void doPost(HttpServletRequest req, HttpServletResponse res)throws IOException,ServletException
{
res.setContentType("text/html");
PrintWriter pw1=res.getWriter();
String nm1=req.getParameter("n1");
String nm2=req.getParameter("n2");
try
{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE","system","Nayan");
Statement stmt=con.createStatement();
String q1="update product set prod_price='"+nm2+"' where prod_id='"+nm1+"'";
int x=stmt.executeUpdate(q1);
if(x>0)
{
pw1.println("<html>\n" +
" <head>\n" +
" <title>Add_Update_Delete</title>\n" +
" <link rel=\"stylesheet\" href=\"https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.1.2/css/all.min.css\" integrity=\"sha512-1sCRPdkRXhBV2PBLUdRb4tMg1w2YPf37qatUFeS7zlBy7jJI8Lf4VHwWfZZfpXtYSLy85pkm9GaYVYMfw5BC1A==\" crossorigin=\"anonymous\" referrerpolicy=\"no-referrer\" />\n" +
" <style>\n" +
" /* Header styling */\n" +
" \n" +
" *{\n" +
" margin: 0;\n" +
" padding: 0;\n" +
" box-sizing: border-box;\n" +
" }\n" +
"\n" +
" html {\n" +
" font-size: 62.5%;\n" +
" }\n" +
"\n" +
" body {\n" +
" font-family: 'Montserrat', sans-serif;\n" +
" } \n" +
" header {\n" +
" background-color: black;\n" +
" }\n" +
"\n" +
" .navbar {\n" +
" font-size: 2rem;\n" +
" display: flex;\n" +
" padding-left: 6rem;\n" +
" padding-top: 2rem;\n" +
" padding-bottom: 3rem;\n" +
" align-items: center;\n" +
" justify-content: space-between;\n" +
" }\n" +
"\n" +
" .navbar .logo {\n" +
" text-transform: uppercase;\n" +
" }\n" +
"\n" +
" .navbar .logo .first{\n" +
" color: red;\n" +
" }\n" +
"\n" +
" .navbar .logo .second {\n" +
" color: yellow;\n" +
" }\n" +
"\n" +
" .navbar ul{\n" +
" display: flex;\n" +
" justify-content: space-between;\n" +
" }\n" +
"\n" +
" .navbar ul li {\n" +
" border: 2px soid white;\n" +
" list-style-type: none;\n" +
" display: inline-block;\n" +
" margin-right: 8rem;\n" +
" border-bottom: none;\n" +
" }\n" +
"\n" +
" .navbar ul li a {\n" +
" text-transform: uppercase;\n" +
" color: white;\n" +
" font-weight: 500;\n" +
" text-decoration: none;\n" +
" }\n" +
"\n" +
" .navbar ul li input {\n" +
" padding: 0.5rem;\n" +
" border-radius: 1em;\n" +
" }\n" +
"\n" +
" .navbar ul li a:hover {\n" +
" color: red;\n" +
" }\n" +
"\n" +
" /* footer styling */\n" +
" \n" +
"\n" +
" .footer{\n" +
" background-color: rgb(14, 1, 1);\n" +
" text-align: center;\n" +
" padding: 2rem;\n" +
" }\n" +
"\n" +
" .footer i {\n" +
" padding-left: 3rem;\n" +
" padding-bottom: 1.6rem;\n" +
" color: white;\n" +
" }\n" +
"\n" +
" .footer p {\n" +
" font-size: 2rem;\n" +
" color: white;\n" +
" }\n" +
"\n" +
" /*add,update and delete operation*/\n" +
" .add_update_delete {\n" +
" background-color: #C0EEC0;\n" +
" display:flex;\n" +
" height: 70%;\n" +
" }\n" +
" .Add_item{\n" +
" color: rgb(3, 48, 247);\n" +
" margin-top: 3rem;\n" +
" font-size: 1.5rem;\n" +
" text-decoration: none;\n" +
" background-color: #C0EEC0;\n" +
" border-style: solid;\n" +
" border-color: red;\n" +
" margin-top: 4rem;\n" +
" margin-left: 50rem;\n" +
" padding: 0.5rem;\n" +
" border-radius: 2rem;\n" +
" text-align: center;\n" +
" }\n" +
" .Update_item{\n" +
" color: rgb(3, 48, 247);\n" +
" margin-top: 3rem;\n" +
" font-size: 1.5rem;\n" +
" text-decoration: none;\n" +
" background-color: #C0EEC0;\n" +
" border-style: solid;\n" +
" border-color: red;\n" +
" margin-top: 4rem;\n" +
" margin-left: 50rem;\n" +
" padding: 0.5rem;\n" +
" border-radius: 2rem;\n" +
" }\n" +
" .Multiple_update{\n" +
" color: rgb(3, 48, 247);\n" +
" margin-top: 3rem;\n" +
" font-size: 1.5rem;\n" +
" text-decoration: none;\n" +
" background-color: #C0EEC0;\n" +
" border-style: solid;\n" +
" border-color: red;\n" +
" margin-top: 4rem;\n" +
" margin-left: 50rem;\n" +
" padding: 0.5rem;\n" +
" border-radius: 2rem;\n" +
" }\n" +
" .Delete_item{\n" +
" color: rgb(3, 48, 247);\n" +
" margin-top: 3rem;\n" +
" font-size: 1.5rem;\n" +
" text-decoration: none;\n" +
" background-color: #C0EEC0;\n" +
" border-style: solid;\n" +
" border-color: red;\n" +
" margin-top: 4rem;\n" +
" margin-left: 50rem;\n" +
" padding: 0.5rem;\n" +
" border-radius: 2rem;\n" +
" }\n" +
" table {\n" +
" padding: 8rem;;\n" +
" }\n" +
" td {\n" +
" font-size: 3rem;\n" +
" font-family: 'Courier New', Courier, monospace;\n" +
" font-weight: 500;\n" +
" padding: 0.3rem;\n" +
" }\n" +
" td input {\n" +
" border-radius: 2rem;;\n" +
" font-size: 1.5rem;\n" +
" padding: 1rem;\n" +
" }\n" +
" textarea {\n" +
" border-radius: 2rem;\n" +
" height: 9rem;\n" +
" width: 18rem;\n" +
"\n" +
" }\n" +
"\n" +
" </style>\n" +
"</head>\n" +
"<body>\n" +
" <header>\n" +
" <div class=\"navbar\">\n" +
" <h2 class = 'logo'> <span class = 'first'>Super</span> <span class = 'second'>Shopper</span></h2>\n" +
" <ul>\n" +
" <li><a href=\"Home.html\">Home</a></li>\n" +
" <li><a href=\"About.html\">about</a></li>\n" +
" <li><a href=\"Contact.html\">contact</a></li>\n" +
" <li><a href=\"Admin_login.html\">log out</a></li>\n" +
" </ul>\n" +
" </div>\n" +
" </header>\n" +
" <form class=\"add_update_delete\">\n" +
" <table>\n" +
" <tr>\n" +
" <td><a href=\"Admin_add_item.html\" class=\"Add_item\"><font face=\"Arial\" size=\"5\" color=\"blue\">Add an Item</font></a></td>\n" +
" </tr>\n" +
" <br>\n" +
" <tr>\n" +
" <td><a href=\"Admin_update_item.html\" class=\"Update_item\"><font face=\"Arial\" size=\"5\" color=\"blue\">Update an Item</font></a></td>\n" +
" </tr>\n" +
" <br>\n" +
" <tr>\n" +
" <td><a href=\"Admin_multiple_update.html\" class=\"Multiple_update\"><font face=\"Arial\" size=\"5\" color=\"blue\">Multiple Update on an Item</font></a></td>\n" +
" </tr>\n" +
" <br>\n" +
" <tr>\n" +
" <td><a href=\"Admin_delete_item.html\" class=\"Delete_item\"><font face=\"Arial\" size=\"5\" color=\"blue\">Delete an Item</font></a></td>\n" +
" </tr>\n" +
" <tr>\n"+
" <font face=\"Arial\" size=\"6\" color=\"red\">Updated Successfully</font>\n" +
" </tr>\n"+
" </table>\n" +
" </form>\n" +
" <footer class = \"footer\">\n" +
" <div class=\"social-media-links\">\n" +
" <i class=\"fa-brands fa-facebook fa-4x\"></i>\n" +
" <i class=\"fa-brands fa-twitter fa-4x\"></i>\n" +
" <i class=\"fa-brands fa-instagram fa-4x\"></i>\n" +
" </div>\n" +
" <p>Super Shopper © 2023, All Rights Reserved</p>\n" +
"</footer>\n" +
" </body>\n" +
"</html>");
}
else
{
pw1.println("<html>\n" +
"<head><title>Update</title>\n" +
"<link rel=\"stylesheet\" href=\"https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.1.2/css/all.min.css\" integrity=\"sha512-1sCRPdkRXhBV2PBLUdRb4tMg1w2YPf37qatUFeS7zlBy7jJI8Lf4VHwWfZZfpXtYSLy85pkm9GaYVYMfw5BC1A==\" crossorigin=\"anonymous\" referrerpolicy=\"no-referrer\" />\n" +
"<style>\n" +
" /* Header styling */\n" +
" \n" +
" *{\n" +
" margin: 0;\n" +
" padding: 0;\n" +
" box-sizing: border-box;\n" +
" }\n" +
"\n" +
" html {\n" +
" font-size: 62.5%;\n" +
" }\n" +
"\n" +
" body {\n" +
" font-family: 'Montserrat', sans-serif;;\n" +
" } \n" +
" header {\n" +
" background-color: black;\n" +
" }\n" +
"\n" +
" .navbar {\n" +
" font-size: 2rem;\n" +
" display: flex;\n" +
" padding-left: 6rem;\n" +
" padding-top: 2rem;\n" +
" padding-bottom: 3rem;\n" +
" align-items: center;\n" +
" justify-content: space-between;\n" +
" }\n" +
"\n" +
" .navbar .logo {\n" +
" text-transform: uppercase;\n" +
" }\n" +
"\n" +
" .navbar .logo .first{\n" +
" color: red;\n" +
" }\n" +
"\n" +
" .navbar .logo .second {\n" +
" color: yellow;\n" +
" }\n" +
"\n" +
" .navbar ul{\n" +
" display: flex;\n" +
" justify-content: space-between;\n" +
" }\n" +
"\n" +
" .navbar ul li {\n" +
" border: 2px soid white;\n" +
" list-style-type: none;\n" +
" display: inline-block;\n" +
" margin-right: 8rem;\n" +
" border-bottom: none;\n" +
" }\n" +
"\n" +
" .navbar ul li a {\n" +
" text-transform: uppercase;\n" +
" color: white;\n" +
" font-weight: 500;\n" +
" text-decoration: none;\n" +
" }\n" +
"\n" +
" .navbar ul li input {\n" +
" padding: 0.5rem;\n" +
" border-radius: 1em;\n" +
" }\n" +
"\n" +
" .navbar ul li a:hover {\n" +
" color: red;\n" +
" }\n" +
"\n" +
" /* footer styling */\n" +
" \n" +
"\n" +
" .footer{\n" +
" background-color: rgb(14, 1, 1);\n" +
" text-align: center;\n" +
" padding: 2rem;\n" +
" }\n" +
"\n" +
" .footer i {\n" +
" padding-left: 3rem;\n" +
" padding-bottom: 1.6rem;\n" +
" color: white;\n" +
" }\n" +
"\n" +
" .footer p {\n" +
" font-size: 2rem;\n" +
" color: white;\n" +
" }\n" +
"\n" +
" /* update items */\n" +
" .update {\n" +
" background-color: #C0EEC0;\n" +
" padding-left: 8rem;\n" +
" height: 75%;\n" +
" }\n" +
" table {\n" +
" padding: 8rem;;\n" +
" }\n" +
" td {\n" +
" font-size: 3rem;\n" +
" font-family: 'Courier New', Courier, monospace;\n" +
" font-weight: 500;\n" +
" padding: 0.3rem;\n" +
" }\n" +
" td input {\n" +
" border-radius: 2rem;;\n" +
" font-size: 1.5rem;\n" +
" padding: 1rem;\n" +
" }\n" +
" textarea {\n" +
" border-radius: 2rem;\n" +
" height: 9rem;\n" +
" width: 18rem;\n" +
"\n" +
" }\n" +
"\n" +
" </style>\n" +
"</head>\n" +
"<body>\n" +
" <header>\n" +
" <div class=\"navbar\">\n" +
" <h2 class = 'logo'> <span class = 'first'>Super</span> <span class = 'second'>Shopper</span></h2>\n" +
" <ul>\n" +
" <li><a href=\"Home.html\">Home</a></li>\n" +
" <li><a href=\"About.html\">about</a></li>\n" +
" <li><a href=\"Contact.html\">contact</a></li>\n" +
" <li><a href=\"Admin_login.html\">log out</a></li>\n" +
" </ul>\n" +
" </div>\n" +
" </header>\n" +
"<form method=\"post\" action=\"Admin_update_item\" class=\"update\">\n" +
"<table border =\"0\" width=\"50%\">\n" +
"<tr>\n" +
"<td>Product id:</td>\n" +
"<td><input type=\"text\" name=\"n1\"\n" +
"placeholder=\"Type your product id whose price to be updated\"></td>\n" +
"</tr>\n" +
"<tr>\n" +
"<td>Product price:</td>\n" +
"<td><input type=\"text\" name=\"n2\" placeholder=\"Type new product price\"></td>\n" +
"</tr>\n" +
"<tr><td><input type=\"submit\" value=\"sign in\"></td>\n" +
"</tr>\n" +
"<tr>\n"+
"<font face=\"Arial\" size=\"6\" color=\"red\">Update Failure</font>\n" +
"</tr>\n"+
"</table>\n" +
"</form>\n" +
" <footer class = \"footer\">\n" +
" <div class=\"social-media-links\">\n" +
" <i class=\"fa-brands fa-facebook fa-4x\"></i>\n" +
" <i class=\"fa-brands fa-twitter fa-4x\"></i>\n" +
" <i class=\"fa-brands fa-instagram fa-4x\"></i>\n" +
" </div>\n" +
" <p>Super Shopper © 2023, All Rights Reserved</p>\n" +
" </footer>\n" +
"</body>\n" +
"</html>");
con.close();
}
}
catch(Exception e)
{
pw1.println(e);
}
}
}